Peters



(Mmm 6. 0. BLOWERS.

PAPER BAG. No. 266,696. Patented oet. 16, 188s.

UNrTn" STATES PATENT trice.

GEORGE O.- BLOVERS, OF CANAJOI-IARIE, NEV YORIK PAPER BAG.

SPECIFICATION forming part `of Letters Patent No. 2869896, dated Cctolzer 16, 1883.

Application filed March 2G, IFPS. (Model e in which-like letters indicating like parts- Figure lis a planview of the middle portion of a flattened tubular blank, illustrating same.

a portion of my vpresent invention. Fig. 2 shows, but toa reduced" scale, the blank as folded and slightly distended. Fig. 3 shows the bottom portion or end of a distended bag;

and Fig. 4t is a perspeetiveview of the bottom end of a bag of a somewhat different form, the same being folded and slightly distended.

My present invention relates to an improved paper bag, and to a method of forming the It may be applied tothe making of paper bags generally in which a rectangular bottom is desired; but I will first describe it as applied to the making of a bag the bottom of which is square, or nearly so. rIfhe bag may be made by hand-work entirely, or partly by hand-work and partly by machinery; but as most all the operations involved may be performed by the use of mechanical applianees, such as are well k-nown in the art,I prefer to use such in the work ,to be described. The blanks are brought to a tubular flattened form either from sheets cut to length or from a continuous web, to be subsequentlysevered. The middle portion of such a blank is shown in Fig. l, where Arepresents back half or fold of the blank, and-A the other half or fold, the latter being formed by folding in equal widths of the edges or sides of the sheet or web. The

middle part of each blank should be creased in the lines a a, a a', and ai a2; or, in lieu thereof, it may be so worked or manipulated that in the subsequent folding the bends shall naturally or normally be formed on these lines, or approximately so. The material of the back fold, A, within or between the lines a wand a a2,will constitute the bottom of the bag. Paste is applied along near the edges of the sheet, as at b b, and also along the lines a a and a? ai,

and creases maybemade along the same lines, if desired; butI do not consider them essential. The better to describe the present invention, I have added the dotted'lines c e and c o', and also the diagonal dotted lines running from each of the lines a a, to o?, and from each end of the line a2 al to o3. the top folds, A', eight triangular parts, arranged in pairs, cach pair being lettered n a', and fourtriangular parts, each lettered s.

The bag-blank having been creased and paste applied, as above described, it is ready for folding. This is done by bending the middle or bottom portion of the blank upward on the line a a and downward onv the lines a a and a? a2, and so bringing the extreme outer ends together face to face. In this operation the parts between the lines a a and a a will come `face to face on the surface ,between the lines a aand e c, and the parts between the lines a a and a? twill come face to face on the surface between the lines ai a2 and .0"0, so that when the paste dries permanent adhesion willV In this way I lay outin condition, where e represents the bottom of 8o the bag, folded inward in V shape on the line a a of Fig. l. Vhen the bag is fully distended, the bottom will be as at e, Fig. 3. The meeting pasted edges b of Fig. Vl will form the plaits b b2, which, extending up and down the sides of the bag, but on the insides, and being double at the lower end, will fold around flatwise, as in Fig. 3. The parts s s of Fig. 1, in folding, fold onto the .bottom e, as illustrated in Fig. 2, but do not adhere thereto, and when the bag is opened out they form a part of the sides or body, as at s, Fig. 3. rI he parts n n' `of Fig. 1 fold together in pairs, and constitute or providing for three crease-lines, a, a, a a.,

and a? a?, adding two lines of paste, Z1 b, and

roo

' oblique lines of paste a as, a2 a3, and folding on the lines ofthe creasing; but it is not essential that the parts A A be folded over so as to meet. A narrow edge may be folded over, the creasing done, and the paste be applied along near the edges of the folded parts, and the work` go on as before. bag is shown in Fig. 4. In either or any ease the distance apart of the crease-lines should be exactly or approximately equal to the width of the part A folded in. Following these directions, no difficulty will be experienced in` making bags of different sizes and styles, but with rectangular-shaped bottoms; and it is an important element of utility in the bag described that by reason of its bellows-like sides and bellows bottom, as it opens out or is distended for filling, it takes shape at once, so that it is not necessary to bend in or manipulate the corners, as is now necessary in most patterns or styles of so-called square-bottom grocers bag.77 The bag as thus formed, it wili be observed, has two unbroken sides, A, two sides, A, each having a plaited joint, b', and that the waste material is disposed of in the plaits b2 and ilaps a2, which modes of disposing of the waste material are much better than to eut it out and throw it away.

It will be seen that bythe application of the oblique lines of paste a a3 and a2 a3 the finished bag shown at Fig. 3 will be pasted along the triangular junction formed by the portions A, A', and s, and thus a better article be produced.

What I claim as my invention, and desire to secure by Letters Patent, is

l. The method of makingy paper bags by folding in the lateral sides of the blank or web, providing three crease or bending lines Such a folded at the middle of the Lblank at distances apart equal or approximately equal to the width of each infolded side, applying lines of?. paste along at or near the edge of each infolded side, and also the oblique lines of paste a a3, a* a3, folding in the bottom to a Viorm, and the ends over face to face, 'substantially as set forth.

2. A paper bag made from a blank or web the sides of which have been folded in, and which has been creased at the lines a a and c a and c2 a2, and which has had 'paste applied at or near the said infolded edges, and also at the four oblique lines, as specified, the said bag having a bellows-bottomform at the middle of the blank endwise, as set forth.

3. A paper bag made from a blank or web the sides of which have been folded in, and which has been creased at the lines a a, a a', a2 a2, and also from each end of a a and a2 a2 to the point as, and which has had paste applied at or near the said infolded edges, and also at the fou-r oblique lines, as specified, the said bag having a bellows bottom formed at the middle of the blank endwise, as set forth.

4. A paper bag made from a single sheet having a rectangular bottom, e, two sides, A, free from joints, and the two sides A', each formed-by plaited joint b', and with the Waste material disposed of in the plaits b2, and flaps n2, substantially as set forth.

In testimony whereof I have hereunto set my hand.

. GEORGE O. BLQWERS. Witnesses:

JAMES ARKELL,

A. B. FREY. 

